Coupling apparatus between coaxial cables and antenna system using the coupling apparatus
First Claim
1. An apparatus for coupling a plurality of coaxial cables to each other through a dielectric plate, said apparatus comprising:
- a pair of central electrodes disposed on each side of said dielectric plate and disposed opposite each other, each central electrode having a plate shape and a predetermined area, and each of said central electrodes being connected to a respective central conductor of said coaxial cables;
a pair of outer electrodes disposed on each side of said dielectric plate and disposed opposite each other, each of said outer electrodes surrounding a corresponding one of said central electrodes and being connected to a respective outer conductor of each of said coaxial cables; and
a matching circuit provided between said central electrode and said central conductor of the coaxial cable;
wherein the predetermined areas of said central electrodes are sufficient to permit capacitive coupling between said central electrodes.
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Abstract
Coaxial cables can connect both apparatus which are provided inside and outside a closed space without opening a through hole and a gap into a wall and door. In a coupling apparatus for connecting coaxial cables each other through a dielectric plate, there are provided a pair of central electrodes which are respectively connected central conductors of the coaxial cables, an inductor which is connected between at least one of the central conductor and the central electrode, and a pair of outer electrodes which oppose each other through the dielectric plate and surround the central electrodes, respectively, and each of which is connected to each of the outer electrodes. It is possible to connect the coaxial cables through the dielectric (glass) plate.
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Citations
16 Claims
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1. An apparatus for coupling a plurality of coaxial cables to each other through a dielectric plate, said apparatus comprising:
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a pair of central electrodes disposed on each side of said dielectric plate and disposed opposite each other, each central electrode having a plate shape and a predetermined area, and each of said central electrodes being connected to a respective central conductor of said coaxial cables; a pair of outer electrodes disposed on each side of said dielectric plate and disposed opposite each other, each of said outer electrodes surrounding a corresponding one of said central electrodes and being connected to a respective outer conductor of each of said coaxial cables; and a matching circuit provided between said central electrode and said central conductor of the coaxial cable; wherein the predetermined areas of said central electrodes are sufficient to permit capacitive coupling between said central electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An antenna system including a dielectric plate, an antenna portion mounted on the dielectric plate, and a coaxial cable for supplying a high frequency power through the dielectric plate to the antenna, said antenna system comprising:
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a pair of central electrodes disposed on each side of said dielectric plate and disposed opposite each other, each central electrode having a plate shape and a predetermined area, and one of said central electrodes being connected to a central conductor of said coaxial cable; a pair of outer electrodes disposed on each side of said dielectric plate and disposed opposite each other, said outer electrodes surrounding said central electrodes, and one of said outer electrodes being connected to an outer conductor of said coaxial cable on one side; a first matching circuit provided between said central conductor of said coaxial cable and said central electrode on one side; and a second matching circuit provided between said central conductor of said coaxial cable and said central electrode on the other side; wherein the predetermined areas of said central electrodes are sufficient to permit capacitive coupling between said central electrodes. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification